促进纵向一体化战略的利益协调，需要从企业内、外部社会资本的培育两方面努力。
To promote the interests coordination of the longitudinal integration strategy, enterprises should put efforts into both internal and external social capital cultivation.
以往对社会资本的研究更多关注于外部社会资本的作用，而忽略了对内部社会资本的重视。
Previous studies pay more attention on the role of external social capital, while neglecting the role of internal social capital.
从社会学视角来看，企业提高技术创新水平的关键在于通过内外部社会资本有效的获取和利用知识。
From the perspective of sociology, the key for firms' technological innovation lies in acquiring and exploiting knowledge through external and internal social capital.
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